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USai, a free software.U-Value following EN ISO 6946 and SIA 180
Inhomogeneous walls, air layer, heating,... 
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E4TECH (UK) Ltd: E4TECH Sàrl: |
83, Victoria Street - London SW1H 0HW, UK - +44 (0)20 3008 6140 - info@e4tech.co.uk |
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| © E4tech 2008 - www.e4tech.com | |||